118 FIELD COLUMBIAN MusEUM—GEOLOGY, VOL. II. 
NAME AND DESCRIPTION. 
Date 
of Fall or Find. 
Found 1897. | Los Reyes. 
Complete individual. Small surface etched. 
Cat. No., 454. 
Found 1859- | Tombigbee River, Choctaw and Sumter Counties, 
Alabama. 
Iron. Ataxite,D. While Berwerth classifies this 
iron as an ataxite the structure is in many 
ways cubic. The analysis does not quite ac- 
cord with those of cubic irons however, and a 
new analysis is desirable. 
Etched section 10x14 cm., with crust. Shows 
numerous Neumann lines intersecting at right 
angles. There are numerous irregular inclu- 
sions of schreibersite of nickel-white color. 
Cat. No., 504. 

Found 1863-4] Tomhannock Creek, Rensselaer Co., New York. 
Stone. Brecciated gray chondrite, Cgb. Frag- 
ment from interior, polished. Made up chiefly 
of metallic grains, and a dark-brown, chryso- 
lite-like mineral. Cat. No., 280. 
Slice, showing crust. Interior portion like pre- 
vious specimen. Cat. No., 281. 
Found 1886. | Tonganoxie, Leavenworth Co., Kansas. 
Iron. Medium octahedrite, Om. Full-sized, 
etched section 8x12 cm., with crust. Shows 
typical octahedral figures with small troilite in- 
clusions bordered by kamacite. Cat. No., 477. 
Fell 1863, Tourinnes-la-Grosse, Be! gium. 
Stone. White chondrite, Cw. Fragment from 
interior. Light-gray, with minute metallic 
grains. Outlines of chondri not discernible. 
Friable. Cat. No., 486. 
Found 1858. | Trenton, Washington Co., Wisconsin. 
Iron. Medium octahedrite, Om. Thin slab, 
etched, showing typical Widmanstatten figures, 
the plates of which intersect at angles of 35°. 
Cat. No.81, 
Fell 1856, Trenzano, near Brescia, Italy. 
Nov. 12, Stone. Veined spherical chondrite, Cca. Cubi- 
4 P.M. cal fragment, with crust on two surfaces. The 
latter shining, black, only slightly pitted, 3 mm. 
thick. Interior very compact, coarse-grained, 
the metallic portion forming a network which 
encloses dark, spherical chondri, some of a 
diameter of 2mm. Cat. No., 268. 
Smaller fragment, like previous specimen, Cat. 
No., 325. 
Recognized | Tucson, Pima Co., Arizona, 
235 | 1851. Iron. Nickel-rich ataxite, Muchachos group. 
Etched fragment showing typical stippled 
appearance of this iron. Cat. No., 59. 
Weight 
in grams, 
19,500 
1,690 
264 
137 
57 
bo 
12 
